Electric incinerator



Feb, 24, 19251 G. J. ROHN ET AL ELECTRIC INCINERATOR Filed Sept. 24, 1923 Patented Feb. 24, 1925.

' UNITED STATES PATENT QFFCE.

GILBERT J. ROI-IN ANI) ARNOLD PFA'U', JB., 0F MILNAUKEE, WISCQ'NSIN, ASSIGNORS T@ AMERICAN RESISTOR COMPANY, 0F MILWAUKEE, 'WISCONSIIL A CORP-ORA- TIN 0F WISCONSIN.

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Application led September 24, 1923. teria No. @334,4163.

To all whom it may cof/wem:

Be it known that we, GILBERT J. ROHN and ARNOLD PFAU, Jr., citizens 'of the United States, residing at Milwaukee, in the county of Milwaukee and' State of Wisconsin, have invented new and useful Improvements inJ Electric Incinerators, of which the following is a specification.

Ihis invention relates to electrically operated incinerators, and the primary objects Y thereof are to provide a grate with one or more heating elements which may be firmly secured to the grate, and consequently move with it as the grate is oscillated from normal to dumping position, or vice versa; to arrange means for supporting and connecting the heating elements; and to dev1se a protective covering for said supporting and connecting means.

To the accomplishment of the recited objects and others subordinate thereto, the preferred embodiment of our invention resides in the construction and arrangement of parts hereinafter described, illustrated in the accompanying drawings, and embraced within the scope of the appended claims.

In said drawings:

Figure 1 is a side elevation of an incinerator, partly in section, embodying our inyention, and

Figure 2 is a plan view of the grate removed, and partly broken away.

In the drawings, designates a conventional type of casing provided with a grate (11) which may be maintained in normal position by the catch (12), or any other suitable means.

Depending from opposite marginal edges (13) of the grate (11) are supports or brackets (14) which sustain one or more heating elements (15). For purposes of illustration four of these elements are shown in the drawings. Each terminal of each clement is connected by spring clamp (16), carrying a coil spring (17) to allow for contraction and expansion to a screw (18) which in turn is fastened to an insulating strip (19),superposed with respect to the support (14). For the sake of clarity, it will be pointed out that each clam together with its coil spring and screw, wi l be designated as a mounting for the heating element or resistance bar (15). In order to p-rotect each mounting from the deleterious elfect of acids and other fluids which may seep downwardly from 'the mass of garbage (20), we provide a cover (21) which is secured to the underside of the grate and projects inwardly to a point in vertical parallelism with the inner end of the clamp (16).

Shaft (22) of the grate is bored or suitably hollowed out, as at (23) to accommodate the electric lead wires (24) which supply the necessary current, and the resistance elements are connected in series by the wires (25). 1

Following the construction and arrangement previously outlined, it will be seen that we have devised an incinerator wherein the grate and the heating element constitute a self-contained unit. Upon oscillating the handle (26), the burned garbage is dumped into the pit (27), and when the grate resumes its normal position ready to receive another lling, the heating element being maintained at the same distance from the grate, and requiring no adjustment, supplies the maximum and constant heat which is required.

What We claim, is

1. A grate havin edges provided wit bracketsldepending therefrom, electric heating elements carried by said brackets and extending across the grate openings, mountinvs for said elements, protective coverings for said mountings projecting from the under side of the grate, and means for supplying current to said elements.

2. Anoscillating grate having a shaft, a plurality of independent electric heating elements supporte( in spaced relation below the bottom of the grate, said elements being connected in series, and lead-in wires extending throu h one end of said shaft.

Signed at Mi Waukee, in the county of Milwaukee and State of Wisconsin, this 14th day of September, 1923.

.GILBERT J. ROHN. ARNOLD PFAU, JR. Witnesses:

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